Prettify all the things (part 8)

See merge request gitlab-org/gitlab-ce!22258

Prettify all the things (part 1)

See merge request gitlab-org/gitlab-ce!22248

Resolve "Share frontend configs between repos"

Closes #49740

See merge request gitlab-org/gitlab-ce!22405

2. enable jasmine/no-promise-without-done-fail

See merge request gitlab-org/gitlab-ce!22231

Fix "ready for review" link

See merge request gitlab-org/gitlab-ce!22393

Fix commit signature error when project is disabled

Closes #50903

See merge request gitlab-org/gitlab-ce!22344

Resolve "Webhook Image URLs Rewritten Incorrectly in Issues"

Closes #52650

See merge request gitlab-org/gitlab-ce!22361

Prettify all the things (part 6)

See merge request gitlab-org/gitlab-ce!22256

Fixes styling issues in test reports

Closes #51386 and #52147

See merge request gitlab-org/gitlab-ce!22204

Resolve "Project slug does not auto populate in IE11"

Closes #52686

See merge request gitlab-org/gitlab-ce!22367

Verify that usage ping works when all counts time out

See merge request gitlab-org/gitlab-ce!22358

[QA] Handle sign-up when terms must be accepted

See merge request gitlab-org/gitlab-ce!22374

Add IID headers to E-Mail notifications

Closes #52477

See merge request gitlab-org/gitlab-ce!22263

Fixed file templates not clearing in Web IDE

Closes #52487

See merge request gitlab-org/gitlab-ce!22357

Document linguist overriding

See merge request gitlab-org/gitlab-ce!22386